I think that the perspective, color and composition join to make a very exciting picture. One thought--I borrowed your picture and in Photoshop I dodged the face a little bit and added some saturation back to compensate for the lightness, and I think it might add to the dramatic effect if it is done in a subtle fashion. There certainly is enough light reflected from the boat and water as well as from his shirt to justify the brightening.

I hesitated to comment, because this image -though still a great shot- somehow irritated me and I didn't know why, and now I think its the sky, which looks too washed out for my taste.Lightening/dodging the person seems to be a good idea too as already suggested.I think its some tweaking in tones which is needed.Cheers~Chris